Cover for a plate



FIG. 1 is a top plan view of a cover for a plate showing the new design of the present invention;

FIG. 2 is a right end view thereof, which view is identical to the left end view thereof, the front view thereof, and the rear view thereof; and,

FIG. 3 is a bottom elevational view thereof. 

The ornamental design for a cover for a plate, as shown and described. 